Website Screenshot API Usage:
            Endpoint:
            /api/screenshot/?url=<website_url>&w=<width>&h=<height>&z=<zoom>&d=<delay>&f=<full_page>&darkMode=<true/false>
            Parameters:
            - url: The URL of the website you want to capture. (required)
            - w: Width of the viewport. Default is 1920.
            - h: Height of the viewport. Default is 1080.
            - z: Zoom factor. Default is 1.
            - d: Delay in milliseconds before taking the screenshot. Default is 2000ms.
            - f: Capture full page. Set to 'true' or 'false'. Default is false.
            - darkMode: Enable dark mode. Set to 'true' or 'false'. Default is false.
            Example:
            /api/screenshot/?url=https://example.com&w=1920&h=1080&z=1&d=2000&f=false&darkMode=false